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Date: Tue, 13 May 2008 19:00:53 -0700
From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "Ingo Molnar" <mingo@elte.hu>,
       "James Bottomley" <James.Bottomley@hansenpartnership.com>
Subject: blk_queue_init_tags warning
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
       Linux-Scsi <linux-scsi@vger.kernel.org>
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------------[ cut here ]------------
WARNING: at include/linux/blkdev.h:431 blk_queue_init_tags+0xfe/0x154()
Modules linked in:
Pid: 1509, comm: scsi_wq_0 Not tainted
2.6.26-rc1-sched-devel.git-x86-latest.git-00589-g5bb43f9-dirty #382

Call Trace:
 [<ffffffff802634d5>] warn_on_slowpath+0x6c/0xa7
 [<ffffffff802a8b42>] ? ftrace_record_ip+0x223/0x286
 [<ffffffff8050607f>] ? __blk_queue_init_tags+0x38/0x8e
 [<ffffffff80505f33>] ? init_tag_map+0x96/0xdb
 [<ffffffff80506095>] ? __blk_queue_init_tags+0x4e/0x8e
 [<ffffffff80506326>] blk_queue_init_tags+0xfe/0x154
 [<ffffffff806fa7d8>] qla2xxx_slave_configure+0x8b/0xf7
 [<ffffffff8068da34>] scsi_probe_and_add_lun+0x99f/0xb1f
 [<ffffffff8068cbc8>] ? scsi_alloc_target+0x25b/0x2d7
 [<ffffffff8068dec8>] __scsi_scan_target+0xdd/0x657
 [<ffffffff802a8b42>] ? ftrace_record_ip+0x223/0x286
 [<ffffffff8022a4f0>] ? mcount_call+0x5/0x35
 [<ffffffff8068ea76>] scsi_scan_target+0xab/0xd6
 [<ffffffff8022a4f0>] ? mcount_call+0x5/0x35
 [<ffffffff80697dc1>] fc_scsi_scan_rport+0x92/0xc8
 [<ffffffff80697d2f>] ? fc_scsi_scan_rport+0x0/0xc8
 [<ffffffff80276d45>] run_workqueue+0x97/0x13c
 [<ffffffff80277b1d>] worker_thread+0xf4/0x119
 [<ffffffff8027b8e0>] ? autoremove_wake_function+0x0/0x63
 [<ffffffff80277a29>] ? worker_thread+0x0/0x119
 [<ffffffff8027b6dd>] kthread+0x61/0xa8
 [<ffffffff8025ce01>] ? schedule_tail+0x3c/0x87
 [<ffffffff8022b528>] child_rip+0xa/0x12
 [<ffffffff8027b67c>] ? kthread+0x0/0xa8
 [<ffffffff8022b51e>] ? child_rip+0x0/0x12

---[ end trace b774192c17464dd8 ]---